{"product_id":"kennametal-2238543-replaceable-tip-drill-20-24-20-74mm","title":"Kennametal 2238543 Replaceable-tip Drill 20.24-20.74mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 2238543 is a replaceable-tip drill body designed for precision hole-making in metal cutting applications. It accepts KSEM0797 insert tips at an Insert Seat Size 3, allowing fast tip changes without removing the body from the spindle. The drill covers a diameter range of 20.24 to 20.74 mm (0.7969 to 0.8165 inches) and reaches a maximum drill depth of 60.72 mm (2.39 inches), operating at a 3xD depth-to-diameter ratio. The straight-cylindrical shank measures 25.4 mm in diameter and 76.20 mm in length, providing a secure, concentric grip in standard chuck or collet toolholding systems. Through-coolant delivery via 3.50 mm coolant holes supports chip evacuation and heat management at the cutting zone. Licensed machinists and CNC operators install this tooling in production and job-shop environments.\u003c\/p\u003e\u003cp\u003eThis drill body is suited for use in CNC machining centers and turning centers where consistent, repeatable bore diameters are required. The KSEM series platform is built around modular replaceable-tip technology, making it appropriate for high-volume production runs where minimizing tool changeover time is a priority. It is commonly applied in ferrous and non-ferrous metal workpieces where controlled hole geometry and surface finish are critical. The overall length of 6.38 inches and a flute length of 3.22 inches accommodate standard toolholder setups on vertical and horizontal machining centers.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDiameter range of 20.24 to 20.74 mm supports close-tolerance boring applications\u003c\/li\u003e\n\u003cli\u003e3xD depth-to-diameter ratio with a maximum drill depth of 60.72 mm\u003c\/li\u003e\n\u003cli\u003eThrough-coolant design with 3.50 mm coolant holes for effective chip flushing and thermal control\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank at 25.4 mm diameter for compatibility with standard toolholding\u003c\/li\u003e\n\u003cli\u003eModular KSEM platform accepts KSEM0797 replaceable tips at Insert Seat Size 3\u003c\/li\u003e\n\u003cli\u003eOverall length of 6.38 inches with a 3.22-inch flute length for rigid overhang management\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with KSEM0797 replaceable insert tips at Insert Seat Size 3 within the KENNAMETAL KSEM series modular drill platform.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and setup should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and locked out before mounting or changing the drill body or insert tip. Verify that the straight-cylindrical shank is fully seated and clamped to the toolholder manufacturer's specified torque range before operation. Confirm through-coolant lines are clear and delivering adequate flow before beginning the drilling cycle.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Drill Diameter\u003c\/strong\u003e: 20.24 mm (0.7969 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drill Diameter\u003c\/strong\u003e: 20.74 mm (0.8165 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drill Depth\u003c\/strong\u003e: 60.72 mm (2.39 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Depth by Diameter Ratio\u003c\/strong\u003e: 3xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 25.4 mm (1.0 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 76.20 mm (3.00 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6.38 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 3.22 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Insert Style\u003c\/strong\u003e: KSEM0797\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Seat Size\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Hole Diameter\u003c\/strong\u003e: 3.50 mm (0.1378 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: KSEM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.1354 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: KENNAMETAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 2238543\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51739378942258,"sku":"2238543","price":615.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/30ed7ba4b0f0830935eeb206e9f24be3_3b383b71-6f1f-489e-b11b-547de1b6ea47.jpg?v=1788813802","url":"https:\/\/voomisupply.com\/products\/kennametal-2238543-replaceable-tip-drill-20-24-20-74mm","provider":"Voomi Supply","version":"1.0","type":"link"}